1: # The LearningOnline Network with CAPA
2: # Directory Indexer
3: #
4: # $Id: lonindexer.pm,v 1.181.4.4 2010/01/28 00:01:13 raeburn Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: ###
29:
30: ###############################################################################
31: ## ##
32: ## ORGANIZATION OF THIS PERL MODULE ##
33: ## ##
34: ## 1. Description of functions ##
35: ## 2. Modules used by this module ##
36: ## 3. Choices for different output views (detailed, summary, xml, etc) ##
37: ## 4. BEGIN block (to be run once after compilation) ##
38: ## 5. Handling routine called via Apache and mod_perl ##
39: ## 6. Other subroutines ##
40: ## ##
41: ###############################################################################
42:
43: package Apache::lonindexer;
44:
45: # ------------------------------------------------- modules used by this module
46: use strict;
47: use Apache::lonnet;
48: use Apache::loncommon();
49: use Apache::lonhtmlcommon();
50: use Apache::lonsequence();
51: use Apache::Constants qw(:common);
52: use Apache::lonmeta;
53: use Apache::File;
54: use Apache::lonlocal;
55: use Apache::lonsource();
56: use Apache::groupsort();
57: use GDBM_File;
58: use LONCAPA qw(:match);
59:
60: # ---------------------------------------- variables used throughout the module
61: my %hash; # global user-specific gdbm file
62: my %dirs; # keys are directories, values are the open/close status
63: my %language; # has the reference information present in language.tab
64: my %dynhash; # hash of hashes for dynamic metadata
65: my %dynread; # hash of directories already read for dynamic metadata
66: my %fieldnames; # Metadata fieldnames
67: # ----- Values which are set by the handler subroutine and are accessible to
68: # ----- other methods.
69: my $extrafield; # default extra table cell
70: my $fnum; # file counter
71: my $dnum; # directory counter
72:
73: # ----- Used to include or exclude files with certain extensions.
74: my @Only = ();
75: my @Omit = ();
76:
77:
78:
79:
80: # ----------------------------- Handling routine called via Apache and mod_perl
81: sub handler {
82: my $r = shift;
83: my $c = $r->connection();
84: &Apache::loncommon::content_type($r,'text/html');
85: &Apache::loncommon::no_cache($r);
86: $r->send_http_header;
87: return OK if $r->header_only;
88: $fnum=0;
89: $dnum=0;
90:
91: # Deal with stupid global variables (is there a way around making
92: # these global to this package? It is just so wrong....)
93: undef (@Only);
94: undef (@Omit);
95: %fieldnames=&Apache::lonmeta::fieldnames();
96:
97: # ------------------------------------- read in machine configuration variables
98: my $iconpath= $r->dir_config('lonIconsURL') . "/";
99: my $domain = $r->dir_config('lonDefDomain');
100: my $role = $r->dir_config('lonRole');
101: my $loadlim = $r->dir_config('lonLoadLim');
102: my $servadm = $r->dir_config('lonAdmEMail');
103: my $sysadm = $r->dir_config('lonSysEMail');
104: my $lonhost = $r->dir_config('lonHostID');
105: my $tabdir = $r->dir_config('lonTabDir');
106:
107: my $fileclr='#ffffe6';
108: my $line;
109: my (@attrchk,@openpath,$typeselect);
110: my $uri=$r->uri;
111:
112: # -------------------------------------- see if called from an interactive mode
113: # Get the parameters from the query string
114: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
115: ['catalogmode','launch','acts','mode','form','element',
116: 'only','omit','titleelement']);
117: #-------------------------------------------------------------------
118: my $closebutton='';
119: my $groupimportbutton='';
120: my $colspan='';
121:
122: $extrafield='';
123: my $diropendb =
124: "/home/httpd/perl/tmp/$env{'user.domain'}_$env{'user.name'}_sel_res.db";
125: %hash = ();
126: {
127: my %dbfile;
128: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_WRITER(),0640)) {
129: if ($env{'form.launch'} eq '1') {
130: &start_fresh_session(\%dbfile);
131: }
132: while(my($key,$value)=each(%dbfile)) {
133: $hash{$key}=$value;
134: }
135: untie(%dbfile);
136: }
137: }
138: # - Evaluate actions from previous page (both cumulatively and chronologically)
139: if ($env{'form.catalogmode'} eq 'import' || $hash{'form.catalogmode'} eq 'import') {
140: &Apache::groupsort::update_actions_hash(\%hash);
141: }
142:
143: {
144: #Hijack lonindexer to verify a title and be close down.
145: if ($env{'form.launch'} eq '2') {
146: &Apache::loncommon::content_type($r,'text/html');
147: my $extra='';
148: if (defined($env{'form.titleelement'}) &&
149: $env{'form.titleelement'} ne '') {
150: my $verify_title = &Apache::lonnet::gettitle($env{'form.acts'});
151: # &Apache::lonnet::logthis("Hrrm $env{'form.acts'} -- $verify_title");
152: $verify_title=~s/'/\\'/g;
153: $extra='window.opener.document.forms["'.$env{'form.form'}.'"].elements["'.$env{'form.titleelement'}.'"].value=\''.$verify_title.'\';';
154: }
155: my $js = <<ENDSUBM;
156: <script type="text/javascript">
157: function load() {
158: window.opener.document.forms["$env{'form.form'}"]
159: .elements["$env{'form.element'}"]
160: .value='$env{'form.acts'}';
161: $extra
162: window.close();
163: }
164: </script>
165: ENDSUBM
166: $r->print(&Apache::loncommon::start_page(undef,$js,
167: {'only_body' =>1,
168: 'add_entries' =>
169: {'onload' => "load();"},}
170: ).
171: &Apache::loncommon::end_page());
172: return OK;
173: }
174:
175: # -------------------- refresh environment with user database values (in %hash)
176: &setvalues(\%hash,'form.catalogmode',\%env,'form.catalogmode' );
177:
178: # --------------------- define extra fields and buttons in case of special mode
179: if ($env{'form.catalogmode'} eq 'interactive') {
180: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
181: '<img alt="" src="'.$iconpath.'whitespace1.gif"'.
182: ' class="LC_icon" /></td>';
183: $colspan=" colspan='2' ";
184: my $cl=&mt('Close');
185: $closebutton=<<END;
186: <input type="button" name="close" value='$cl' onclick="self.close()" />
187: END
188: }
189: elsif ($env{'form.catalogmode'} eq 'import') {
190: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
191: '<img alt="" src="'.$iconpath.'whitespace1.gif"'.
192: ' class="LC_icon" /></td>';
193: $colspan=" colspan='2' ";
194: my $cl=&mt('Close');
195: my $gi=&mt('Import');
196: $closebutton=<<END;
197: <input type="button" name="close" value='$cl' onclick="self.close()" />
198: END
199: $groupimportbutton=<<END;
200: <input type="button" name="groupimport" value='$gi'
201: onclick="javascript:select_group()" />
202: END
203: }
204: # Additions made by Matthew to make the browser a little easier to deal
205: # with in the future.
206: #
207: # $mode (at this time) indicates if we are in edit mode.
208: # $form is the name of the form that the URL is placed when the
209: # selection is made.
210: # $element is the name of the element in $formname which receives
211: # the URL.
212: #&Apache::lonxml::debug('Checking mode, form, element');
213: &setvalues(\%hash,'form.mode' ,\%env,'form.mode' );
214: &setvalues(\%hash,'form.form' ,\%env,'form.form' );
215: &setvalues(\%hash,'form.element' ,\%env,'form.element');
216: &setvalues(\%hash,'form.titleelement',\%env,'form.titleelement');
217: &setvalues(\%hash,'form.only' ,\%env,'form.only' );
218: &setvalues(\%hash,'form.omit' ,\%env,'form.omit' );
219:
220: # Deal with 'omit' and 'only'
221: if (exists $env{'form.omit'}) {
222: @Omit = split(',',$env{'form.omit'});
223: }
224: if (exists $env{'form.only'}) {
225: @Only = split(',',$env{'form.only'});
226: }
227:
228: my $mode = $env{'form.mode'};
229: my ($form,$element,$titleelement);
230: if ($mode eq 'edit' || $mode eq 'parmset') {
231: $form = $env{'form.form'};
232: $element = $env{'form.element'};
233: $titleelement = $env{'form.titleelement'};
234: }
235: #&Apache::lonxml::debug("mode=$mode form=$form element=$element titleelement=$titleelement");
236: # ------ set catalogmodefunctions to have extra needed javascript functionality
237: my $catalogmodefunctions='';
238: if ($env{'form.catalogmode'} eq 'interactive' or
239: $env{'form.catalogmode'} eq 'import') {
240: # The if statement below sets us up to use the old version
241: # by default (ie. if $mode is undefined). This is the easy
242: # way out. Hopefully in the future I'll find a way to get
243: # the calls dealt with in a more comprehensive manner.
244:
245: #
246: # There is now also mode "simple", which is for the simple version of the rat
247: #
248: #
249: if (!defined($mode) || ($mode ne 'edit' && $mode ne 'parmset')) {
250: my $location = "/adm/groupsort?&inhibitmenu=yes&catalogmode=import&";
251: $location .= "mode=".$mode."&";
252: $location .= "acts=";
253: $catalogmodefunctions=<<"END";
254: function select_data(url) {
255: changeURL(url);
256: self.close();
257: }
258: function select_group() {
259: window.location="$location"+document.forms.fileattr.acts.value;
260: }
261: function changeURL(val) {
262: if (opener.inf) {
263: if (opener.inf.document.forms.resinfo.elements.u) {
264: opener.inf.document.forms.resinfo.elements.u.value=val;
265: }
266: }
267: }
268: END
269: } elsif ($mode eq 'edit') { # we are in 'edit' mode
270: my $location = "/adm/groupsort?catalogmode=interactive&";
271: $location .= "form=$form&element=$element&mode=edit&acts=";
272: $catalogmodefunctions=<<END;
273: // mode = $mode
274: function select_data(url) {
275: var location = "/res/?launch=2&form=$form&element=$element&titleelement=$titleelement&acts=" + url;
276: window.location=location;
277: if (window.opener.document.forms["$form"].elements["$element"].value != url) {
278: window.opener.unClean();
279: }
280: }
281: function select_group() {
282: window.location="$location"+document.forms.fileattr.acts.value;
283: }
284:
285: function changeURL(val) {
286: if (window.opener.document) {
287: window.opener.document.forms["$form"].elements["$element"].value=val;
288: } else {
289: alert("The file you selected is: "+val);
290: }
291: }
292: END
293: if (!$titleelement) {
294: $catalogmodefunctions.='function changeTitle(val) {}';
295: } else {
296: $catalogmodefunctions.=<<END;
297: function changeTitle(val) {
298: if (window.opener.document) {
299: window.opener.document.forms["$form"].elements["$titleelement"].value=val;
300: } else {
301: alert("The title of the file you selected is: "+val);
302: }
303: }
304: END
305: }
306: } elsif ($mode eq 'parmset') {
307: my $location = "/adm/groupsort?catalogmode=interactive&";
308: $location .= "form=$form&element=$element&mode=parmset&acts=";
309: $catalogmodefunctions=<<END;
310: // mode = $mode
311: function select_data(url) {
312: changeURL(url);
313: self.close();
314: }
315:
316: function select_group() {
317: window.location="$location"+document.forms.fileattr.acts.value;
318: }
319:
320: function changeURL(val) {
321: if (window.opener.document) {
322: var elementname = "$element"+"_value";
323: var checkboxname = "$element"+"_setparmval";
324: window.opener.document.forms["$form"].elements[elementname].value=val;
325: window.opener.document.forms["$form"].elements[checkboxname].checked=true;
326: } else {
327: alert("The file you selected is: "+val);
328: }
329: }
330:
331: END
332: }
333: }
334: $catalogmodefunctions.=<<END;
335: var acts='';
336: function rep_dirpath(suffix,val) {
337: eval("document.forms.dirpath"+suffix+".acts.value=val");
338: }
339: END
340: if ($env{'form.catalogmode'} eq 'import') {
341: $catalogmodefunctions.=<<END;
342: function queue(val) {
343: if (eval("document.forms."+val+".filelink.checked")) {
344: var l=val.length;
345: var v=val.substring(4,l);
346: document.forms.fileattr.acts.value+='1a'+v+'b';
347: }
348: else {
349: var l=val.length;
350: var v=val.substring(4,l);
351: document.forms.fileattr.acts.value+='0a'+v+'b';
352: }
353: }
354: END
355: }
356:
357: my $inhibit_menu = "+'&".&Apache::loncommon::inhibit_menu_check()."'";
358: # ---------------------------------------------------------------- Print Header
359:
360: my $js = <<"ENDHEADER";
361: <script type="text/javascript">
362: $catalogmodefunctions;
363: function update_only(field) {
364: alert(field.name);
365: }
366: function checkAll() {
367: var numForms = document.forms.length;
368: for (i=0;i<numForms;i++) {
369: var numElements = document.forms[i].elements.length;
370: for (j=0;j<numElements;j++){
371: var fieldName = document.forms[i].elements[j].name;
372: if (fieldName == 'filelink') {
373: document.forms[i].elements[j].checked = true;
374: queue(document.forms[i].name);
375: }
376: }
377: }
378: }
379: function uncheckAll() {
380: var numForms = document.forms.length;
381: for (i=0;i<numForms;i++) {
382: var numElements = document.forms[i].elements.length;
383: for (j=0;j<numElements;j++){
384: var fieldName = document.forms[i].elements[j].name;
385: if (fieldName == 'filelink') {
386: document.forms[i].elements[j].checked = false;
387: queue(document.forms[i].name);
388: }
389: }
390: }
391: }
392: function openWindow(url, wdwName, w, h, toolbar,scrollbar,locationbar) {
393: var xpos = (screen.width-w)/2;
394: xpos = (xpos < 0) ? '0' : xpos;
395: var ypos = (screen.height-h)/2-30;
396: ypos = (ypos < 0) ? '0' : ypos;
397: var options = "width=" + w + ",height=" + h + ",screenx="+xpos+",screeny="+ypos+",";
398: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
399: options += "menubar=no,toolbar="+toolbar+",location="+locationbar+",directories=no";
400: var newWin = window.open(url, wdwName, options);
401: newWin.focus();
402: }
403: function gothere(val) {
404: window.location=val+'?acts='+document.forms.fileattr.acts.value$inhibit_menu;
405: }
406: </script>
407: ENDHEADER
408:
409: my ($headerdom)=($uri=~m{^/res/($match_domain)/});
410: my %args = (
411: 'domain' => $headerdom,
412: );
413: if ($env{'form.catalogmode'}) {
414: # "Popup mode"
415: $args{'only_body'} = 1;
416: }
417: $r->print(&Apache::loncommon::start_page('Browse Resources',$js,\%args));
418: # ---------------------------------- get state of file types to be showing
419: if ($env{'form.only'}) {
420: $typeselect = $env{'form.only'};
421: } else {
422: $typeselect = '';
423: }
424:
425: # ---------------------------------- get state of file attributes to be showing
426: if ($env{'form.attrs'}) {
427: for (my $i=0; $i<=16; $i++) {
428: delete $hash{'display_attrs_'.$i};
429: if ($env{'form.attr'.$i} == 1) {
430: $attrchk[$i] = 'checked="checked"';
431: $hash{'display_attrs_'.$i} = 1;
432: }
433: }
434: } else {
435: for (my $i=0; $i<=16; $i++) {
436: $attrchk[$i] = 'checked="checked"' if $hash{'display_attrs_'.$i} == 1;
437: }
438: }
439:
440: # ------------------------------- output state of file attributes to be showing
441: # All versions has to the last item
442: # since it does not take an extra col
443: my %lt=&Apache::lonlocal::texthash(
444: 'ti' => 'Title',
445: 'si' => 'Size',
446: 'la' => 'Last access',
447: 'lm' => 'Last modified',
448: 'st' => 'Statistics',
449: 'au' => 'Author',
450: 'kw' => 'Keywords',
451: 'sb' => 'Subject',
452: 'nt' => 'Notes',
453: 'ab' => 'Abstract',
454: 'ln' => 'Language',
455: 'gl' => 'Grade Level',
456: 'sd' => 'Standards',
457: 'sa' => 'Source Available',
458: 'sr' => 'Show resource',
459: 'li' => 'Linked/Related Resources',
460: 'av' => 'All versions',
461: 'ud' => 'Update Display',
462: 'pr' => 'Problems',
463: 'gr' => 'Graphics',
464: 'at' => 'All types',
465: 'hd' => 'Display Options',
466: );
467: $r->print(<<END);
468: <fieldset>
469: <legend>$lt{'hd'}</legend>
470: <form method="post" name="fileattr" action="$uri" enctype="application/x-www-form-urlencoded">
471: <label><input type="checkbox" name="attr9" value="1" $attrchk[9] onclick="this.form.submit();" /> $lt{'av'}</label>
472: <table border="0">
473: <tr>
474: <td><label><input type="checkbox" name="attr0" value="1" $attrchk[0] onclick="this.form.submit();" /> $lt{'ti'}</label></td>
475: <td><label><input type="checkbox" name="attr4" value="1" $attrchk[4] onclick="this.form.submit();" /> $lt{'au'}</label></td>
476: <td><label><input type="checkbox" name="attr5" value="1" $attrchk[5] onclick="this.form.submit();" /> $lt{'kw'}</label></td>
477: <td><label><input type="checkbox" name="attr6" value="1" $attrchk[6] onclick="this.form.submit();" /> $lt{'ln'}</label></td>
478: <td><label><input type="checkbox" name="attr13" value="1" $attrchk[13] onclick="this.form.submit();" /> $lt{'nt'}</label></td>
479: <td><label><input type="checkbox" name="attr16" value="1" $attrchk[16] onclick="this.form.submit();" /> $lt{'sd'}</label></td>
480: </tr>
481: <tr>
482: <td><label><input type="checkbox" name="attr1" value="1" $attrchk[1] onclick="this.form.submit();" /> $lt{'si'}</label></td>
483: <td><label><input type="checkbox" name="attr2" value="1" $attrchk[2] onclick="this.form.submit();" /> $lt{'la'}</label></td>
484: <td><label><input type="checkbox" name="attr3" value="1" $attrchk[3] onclick="this.form.submit();" /> $lt{'lm'}</label></td>
485: <td><label><input type="checkbox" name="attr10" value="1" $attrchk[10] onclick="this.form.submit();" /> $lt{'sa'}</label></td>
486: <td><label><input type="checkbox" name="attr14" value="1" $attrchk[14] onclick="this.form.submit();" /> $lt{'ab'}</label></td>
487: <td> </td>
488: </tr>
489: <tr>
490: <td><label><input type="checkbox" name="attr8" value="1" $attrchk[8] onclick="this.form.submit();" /> $lt{'st'}</label></td>
491: <td><label><input type="checkbox" name="attr11" value="1" $attrchk[11] onclick="this.form.submit();" /> $lt{'li'}</label></td>
492: <td><label><input type="checkbox" name="attr7" value="1" $attrchk[7] onclick="this.form.submit();" /> $lt{'sr'}</label></td>
493: <td><label><input type="checkbox" name="attr12" value="1" $attrchk[12] onclick="this.form.submit();" /> $lt{'sb'}</label></td>
494: <td><label><input type="checkbox" name="attr15" value="1" $attrchk[15] onclick="this.form.submit();" /> $lt{'gl'}</label></td>
495: <td> </td>
496: </tr>
497: </table>
498: <input type="hidden" name="attrs" value="1" />
499: END
500: my @file_categories = &Apache::loncommon::filecategories();
501: my %select_file_categories;
502: my @select_form_order = ('');
503: $select_file_categories{''} = &mt('All file types');
504: foreach my $cat (@file_categories) {
505: my $types = join(",",&Apache::loncommon::filecategorytypes($cat));
506: $select_file_categories{$types} = &mt($cat);
507: push(@select_form_order,$types);
508: }
509: $select_file_categories{'select_form_order'} = \@select_form_order;
510: my $type_element=
511: &Apache::loncommon::select_form(
512: $typeselect,
513: 'only',
514: %select_file_categories);
515: $type_element = '<label>'.&mt('File Type Displayed: [_1]',
516: $type_element).'</label>';
517: $r->print($type_element
518: .'</fieldset>');
519: $r->print(<<END);
520: <br />
521: <input type="submit" name="updatedisplay" value="$lt{'ud'}" />
522: <input type="hidden" name="acts" value="" />
523: $closebutton $groupimportbutton
524: END
525: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
526:
527: # -------------- Filter out sequence containment in crumbs and "recent folders"
528: my $storeuri=$uri;
529: $storeuri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
530: $storeuri=~s/\/+/\//g;
531: # ---------------------------------------------------------------- Bread crumbs
532: $r->print(&Apache::lonhtmlcommon::crumbs($storeuri,'','',
533: (($env{'form.catalogmode'} eq 'import')?
534: 'document.forms.fileattr':'')).
535: &Apache::lonhtmlcommon::select_recent('residx','resrecent',
536: 'window.status=this.form.resrecent.options[this.form.resrecent.selectedIndex].value;this.form.action=this.form.resrecent.options[this.form.resrecent.selectedIndex].value;this.form.submit();'));
537: # -------------------------------------------------------- Resource Home Button
538: my $reshome=$env{'course.'.$env{'request.course.id'}.'.reshome'};
539: if ($reshome) {
540: $r->print("<font size='+2'><a href='");
541: if ($env{'form.catalogmode'} eq 'import') {
542: $r->print('javascript:document.forms.fileattr.action="'.&Apache::loncommon::inhibit_menu_check($reshome).'";document.forms.fileattr.submit();');
543: } else {
544: $r->print($reshome);
545: }
546: $r->print("'>".&mt('Home').'</a></font>');
547: }
548: $r->print('</form>');
549: # ------------------------------------------------------ Remember where we were
550: &Apache::loncommon::storeresurl($storeuri);
551: &Apache::lonhtmlcommon::store_recent('residx',$storeuri,$storeuri);
552: # -------------------------------------------------- Check All and Uncheck all
553: if ($env{'form.catalogmode'} eq 'import') {
554: $r->print('<br /><input type="button" value="'.&mt("Check All").'" id="checkallbutton" onclick="javascript:checkAll()" />');
555: $r->print('<input type="button" value="'.&mt("Uncheck All").'" id="uncheckallbutton" onclick="javascript:uncheckAll()" />');
556: }
557: # ----------------- output starting row to the indexed file/directory hierarchy
558: my $titleclr="#ddffff";
559: #$r->print(&initdebug());
560: #$r->print(&writedebug("Omit:@Omit")) if (@Omit);
561: #$r->print(&writedebug("Only:@Only")) if (@Only);
562: $r->print('<table width="100%" border="0"><tr><td bgcolor="#777777">'."\n");
563: $r->print('<table width="100%" border="0"><tr bgcolor="'.$titleclr.'">'."\n");
564: $r->print("<td $colspan><b>".&mt('Name')."</b></td>\n");
565: $r->print("<td><b>".&mt('Title')."</b></td>\n")
566: if ($hash{'display_attrs_0'} == 1);
567: $r->print("<td align=right><b>".&mt("Size")." (".&mt("bytes").") ".
568: "</b></td>\n") if ($hash{'display_attrs_1'} == 1);
569: $r->print("<td><b>".&mt("Last accessed")."</b></td>\n")
570: if ($hash{'display_attrs_2'} == 1);
571: $r->print("<td><b>".&mt("Last modified")."</b></td>\n")
572: if ($hash{'display_attrs_3'} == 1);
573: $r->print("<td><b>".&mt("Author(s)")."</b></td>\n")
574: if ($hash{'display_attrs_4'} == 1);
575: $r->print("<td><b>".&mt("Keywords")."</b></td>\n")
576: if ($hash{'display_attrs_5'} == 1);
577: $r->print("<td><b>".&mt("Language")."</b></td>\n")
578: if ($hash{'display_attrs_6'} == 1);
579: $r->print("<td><b>".&mt("Usage Statistics")." <br />(".
580: &mt("Courses/Network Hits").")</b> ".&mt('updated periodically')."</td>\n")
581: if ($hash{'display_attrs_8'} == 1);
582: $r->print("<td><b>".&mt("Source Available")."</b></td>\n")
583: if ($hash{'display_attrs_10'} == 1);
584: $r->print("<td><b>".&mt("Linked/Related Resources")."</b></td>\n")
585: if ($hash{'display_attrs_11'} == 1);
586: $r->print("<td><b>".&mt("Resource")."</b></td>\n")
587: if ($hash{'display_attrs_7'} == 1);
588: $r->print("<th>".&mt("Subject")."</th>\n")
589: if ($hash{'display_attrs_12'} == 1);
590: $r->print("<th>".&mt("Notes")."</th>\n")
591: if ($hash{'display_attrs_13'} == 1);
592: $r->print("<th>".&mt("Abstract")."</th>\n")
593: if ($hash{'display_attrs_14'} == 1);
594: $r->print("<th>".&mt("Grade Level")."</th>\n")
595: if ($hash{'display_attrs_15'} == 1);
596: $r->print("<th>".&mt("Standards")."</th>\n")
597: if ($hash{'display_attrs_16'} == 1);
598: $r->print('</tr>');
599:
600: # ----------------- read in what directories have previously been set to "open"
601: foreach (keys %hash) {
602: if ($_ =~ /^diropen_status_/) {
603: my $key = $_;
604: $key =~ s/^diropen_status_//;
605: $dirs{$key} = $hash{$_};
606: }
607: }
608:
609: if ($env{'form.openuri'}) { # take care of review and refresh options
610: my $uri=$env{'form.openuri'};
611: if (exists($hash{'diropen_status_'.$uri})) {
612: my $cursta = $hash{'diropen_status_'.$uri};
613: $dirs{$uri} = 'open';
614: $hash{'diropen_status_'.$uri} = 'open';
615: if ($cursta eq 'open') {
616: $dirs{$uri} = 'closed';
617: $hash{'diropen_status_'.$uri} = 'closed';
618: }
619: } else {
620: $hash{'diropen_status_'.$uri} = 'open';
621: $dirs{$uri} = 'open';
622: }
623: }
624:
625: my $toplevel;
626: my $indent = 0;
627: $uri = $uri.'/' if $uri !~ /.*\/$/;
628:
629: if ($env{'form.dirPointer'} ne 'on') {
630: $hash{'top.level'} = $uri;
631: $toplevel = $uri;
632: } else {
633: $toplevel = $hash{'top.level'};
634: }
635:
636: # -------------------------------- if not at top level, provide an uplink arrow
637: if ($toplevel ne '/res/'){
638: my (@uri_com) = split(/\//,$uri);
639: pop @uri_com;
640: my $upone = join('/',@uri_com);
641: my @list = qw (0);
642: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
643: $indent = 1;
644: }
645:
646: # -------- recursively go through all the directories and output as appropriate
647: &scanDir ($r,$toplevel,$indent,\%hash);
648:
649:
650: # -------------------------------------------------------------- end the tables
651: $r->print('</table>');
652: # ---------------------------- embed hidden information useful for group import
653: $r->print("<form name='fnum' action=''>");
654: $r->print("<input type='hidden' name='fnum' value='$fnum' /></form>");
655: # -------------------------------------------------------------- end the tables
656: $r->print('</td></tr></table>');
657:
658: # --------------------------------------------------- end the output and return
659: $r->print(&Apache::loncommon::end_page()."\n");
660: }
661: if(! $c->aborted()) {
662: # write back into the temporary file
663: my %dbfile;
664: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
665: while (my($key,$value) = each(%hash)) {
666: $dbfile{$key}=$value;
667: }
668: untie(%dbfile);
669: }
670: }
671:
672: return OK;
673: }
674:
675: # ----------------------------------------------- recursive scan of a directory
676: sub scanDir {
677: my ($r,$startdir,$indent,$hashref)=@_;
678: my $c = $r->connection();
679: my ($compuri,$curdir);
680: my $dirptr=16384;
681: my $obs;
682: $indent++;
683: my %dupdirs = %dirs;
684: my @list=&get_list($r,$startdir);
685: foreach my $line (@list) {
686: return if ($c->aborted());
687: #This is a kludge, sorry aboot this
688: my ($strip,$dom,undef,$testdir,undef,undef,undef,undef,undef,undef,undef,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
689: next if($strip =~ /.*\.meta$/ | $obs eq '1');
690: my (@fileparts) = split(/\./,$strip);
691: if ($hash{'display_attrs_9'} != 1) {
692: # if not all versions to be shown
693: if (scalar(@fileparts) >= 3) {
694: my $fext = pop @fileparts;
695: my $ov = pop @fileparts;
696: my $fname = join ('.',@fileparts,$fext);
697: next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
698: }
699: }
700:
701: if ($dom eq 'domain') {
702: # dom list has full path /res/<domain name>/ already
703: $curdir='';
704: $compuri = (split(/\&/,$line))[0];
705: } else {
706: # user, dir & file have name only, i.e., w/o path
707: $compuri = join('',$startdir,$strip,'/');
708: $curdir = $startdir;
709: }
710: my $diropen = 'closed';
711: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/) or ($compuri=~/\.(sequence|page)\/$/)) {
712: while (my ($key,$val)= each %dupdirs) {
713: if ($key eq $compuri and $val eq "open") {
714: $diropen = "opened";
715: delete($dupdirs{$key});
716: delete($dirs{$key});
717: }
718: }
719: }
720: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
721: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
722: }
723: $indent--;
724: }
725:
726: # --------------- get complete matched list based on the uri (returns an array)
727: sub get_list {
728: my ($r,$uri)=@_;
729: my @list=();
730: (my $luri = $uri) =~ s/\//_/g;
731: if ($env{'form.updatedisplay'}) {
732: foreach (keys %hash) {
733: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
734: delete $hash{$_} if ($_ =~ /^dirlist_timestamp_files_/);
735: }
736: }
737:
738: if (defined($hash{'dirlist_files_'.$luri}) &&
739: $hash{'dirlist_timestamp_files_'.$luri}+600 > (time)) {
740: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
741: } elsif ($uri=~/\.(page|sequence)\/$/) {
742: # is a page or a sequence
743: $uri=~s/\/$//;
744: $uri='/'.(split(/\.(page|sequence)\/\//,$uri))[-1];
745: $uri=~s/\/+/\//g;
746: foreach (&Apache::lonsequence::attemptread(&Apache::lonnet::filelocation('',$uri))) {
747: my @ratpart=split(/\:/,$_);
748: push(@list,&LONCAPA::map::qtescape($ratpart[1]));
749: }
750: $hash{'dirlist_files_'.$luri} = join("\n",@list);
751: } else {
752: # is really a directory
753: @list = &Apache::lonnet::dirlist($uri);
754: $hash{'dirlist_files_'.$luri} = join("\n",@list);
755: $hash{'dirlist_timestamp_files_'.$luri} = time;
756: }
757: return @list=&match_ext($r,@list);
758: }
759:
760: sub dynmetaread {
761: my $uri=shift;
762: if (($hash{'display_attrs_8'}==1) || ($hash{'display_attrs_11'}==1)) {
763: # We don't want the filename
764: $uri=~s/\/[^\/]+$//;
765: # Did we already see this?
766: my $builddir=$uri;
767: while ($builddir) {
768: if ($dynread{$builddir}) {
769: return 0;
770: }
771: $builddir=~s/\/[^\/]+$//;
772: }
773: # Actually get the data
774: %dynhash=
775: (%dynhash,&Apache::lonmeta::get_dynamic_metadata_from_sql($uri.'/'));
776: # Remember that we got it
777: $dynread{$uri}=1;
778: }
779: }
780:
781: sub initdebug {
782: my $start_page=
783: &Apache::loncommon::start_page('Debug',undef,
784: {'only_body' => 1,});
785: $start_page =~ s/\n/ /g;
786: return <<ENDJS;
787: <script type="text/javascript">
788: var debugging = true;
789: if (debugging) {
790: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
791: }
792:
793: function output(text) {
794: if (debugging) {
795: debuggingWindow.document.writeln(text);
796: }
797: }
798: output('$start_page<pre>');
799: </script>
800: ENDJS
801: }
802:
803: sub writedebug {
804: my ($text) = @_;
805: return "<script type=\"text/javascript\">output('$text');</script>";
806: }
807:
808: # -------------------- filters out files based on extensions (returns an array)
809: sub match_ext {
810: my ($r,@packlist)=@_;
811: my @trimlist;
812: my $nextline;
813: my @fileext;
814: my $dirptr=16384;
815:
816: foreach my $line (@packlist) {
817: chomp $line;
818: $line =~ s/^\/home\/httpd\/html//;
819: my @unpackline = split (/\&/,$line);
820: next if ($unpackline[0] eq '.');
821: next if ($unpackline[0] eq '..');
822: my @filecom = split (/\./,$unpackline[0]);
823: my $fext = pop(@filecom);
824: my $fnptr = ($unpackline[3]&$dirptr) || ($fext=~/\.(page|sequence)$/);
825: if ($fnptr == 0 and $unpackline[3] ne "") {
826: my $embstyle = &Apache::loncommon::fileembstyle($fext);
827: push @trimlist,$line if (defined($embstyle) &&
828: ($embstyle ne 'hdn' or $fext eq 'meta'));
829: } else {
830: push @trimlist,$line;
831: }
832: }
833: @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
834: return @trimlist;
835: }
836:
837: # ------------------------------- displays one line in appropriate table format
838: sub display_line {
839: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
840: my (@pathfn, $fndir);
841: # there could be relative paths (files actually belonging into this directory)
842: # or absolute paths (for example, from sequences)
843: my $absolute;
844: my $pathprefix;
845: if ($line=~m|^/res/| && $startdir ne '') {
846: $absolute=1;
847: $pathprefix='';
848: } else {
849: $absolute=0;
850: $pathprefix=$startdir;
851: }
852: my $dirptr=16384;
853: my $fileclr="#ffffe6";
854: my $iconpath= $r->dir_config('lonIconsURL') . '/';
855:
856: my @filecom = split (/\&/,$line);
857: my @pathcom = split (/\//,$filecom[0]);
858: my $listname = $pathcom[scalar(@pathcom)-1];
859: my $fnptr = $filecom[3]&$dirptr;
860: my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
861: $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
862:
863: my $tabtag='</td>';
864: my $i=0;
865: while ($i<=16) {
866: $tabtag=join('',$tabtag,"<td> </td>")
867: if ($i != 9 &&
868: $hash{'display_attrs_'.$i} == 1);
869: $i++;
870: }
871: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
872:
873: # display uplink arrow
874: if ($filecom[1] eq 'viewOneUp') {
875: my $updir=$startdir;
876: # -------------- Filter out sequence containment in crumbs and "recent folders"
877: $updir='/'.(split(/\.(page|sequence)\/\//,$startdir))[-1];
878: $updir=~s/\/+/\//g;
879:
880: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
881: $r->print("<td>\n");
882: $r->print ('<form method="post" name="dirpathUP" action="'.$updir.
883: '/" '.
884: 'onsubmit="return rep_dirpath(\'UP\','.
885: 'document.forms.fileattr.acts.value)" '.
886: 'enctype="application/x-www-form-urlencoded"'.
887: '>'."\n");
888: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
889: $r->print ('<input type="hidden" name="openuri" value="'.
890: $startdir.'" />'."\n");
891: $r->print ('<input type="hidden" name="acts" value="" />'."\n");
892: $r->print ('<input src="'.$iconpath.'arrow_up.gif"');
893: $r->print (' name="'.$msg.'" alt="'.$msg.'" type="image" class="LC_indexer_icon" />'.
894: "\n");
895: $r->print(&mt("Up")."</form>$tabtag</tr>\n");
896: return OK;
897: }
898: # Do we have permission to look at this?
899:
900: if($filecom[15] ne '1') { return OK if ((!&Apache::lonnet::allowed('bre',$pathprefix.$filecom[0])) && (!&Apache::lonnet::allowed('bro',$pathprefix.$filecom[0]))); }
901:
902: # make absolute links appear on different background
903: if ($absolute) { $fileclr='#ccdd99'; }
904:
905: # display domain
906: if ($filecom[1] eq 'domain') {
907: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n")
908: if ($env{'form.dirPointer'} eq "on");
909: $r->print("<tr valign='$valign' bgcolor=\"$fileclr\">$extrafield");
910: $r->print("<td>");
911: &begin_form ($r,$filecom[0]);
912: my $anchor = $filecom[0];
913: $anchor =~ s/\W//g;
914: $r->print ('<a name="'.$anchor.'"></a>');
915: $r->print ('<input type="hidden" name="acts" value="" />');
916: $r->print ('<input src="'.$iconpath.'folder_pointer_'.
917: $diropen.'.gif"');
918: $r->print (' name="'.$msg.'" alt="'.$msg.'" type="image" class="LC_indexer_icon" />'.
919: "\n");
920: my $quotable_filecom = &Apache::loncommon::escape_single($filecom[0]);
921: $r->print ('<a href="javascript:gothere(\''.$quotable_filecom.
922: '\')"><img alt="" src="'.$iconpath.'server.gif"');
923: $r->print (' class="LC_icon" /></a>'."\n");
924: $r->print (&mt("Domain")." - $listname ");
925: if (&Apache::lonnet::domain($listname,'description')) {
926: $r->print("(".&Apache::lonnet::domain($listname,'description').
927: ")");
928: }
929: $r->print ("</form>$tabtag</tr>\n");
930: return OK;
931:
932: # display user directory
933: }
934: if ($filecom[1] eq 'user') {
935: # $r->print("<tr valign=$valign bgcolor=\"$fileclr\">$extrafield");
936: my $curdir = $startdir.$filecom[0].'/';
937: my $anchor = $curdir;
938: $anchor =~ s/\W//g;
939: $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
940: &begin_form ($r,$curdir);
941: $r->print ('<a name="'.$anchor.'"></a><img alt="" src="'.$iconpath.
942: 'whitespace1.gif" class="LC_icon" />'."\n");
943: $r->print ('<input type="hidden" name="acts" value="" />');
944: $r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
945: '.gif"');
946: $r->print (' name="'.$msg.'" alt="'.$msg.'" type="image" class="LC_indexer_icon" />'.
947: "\n");
948: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
949: $r->print ('<a href="javascript:gothere(\''.$quotable_curdir
950: .'\')"><img alt="'.$msg.'" src="'.
951: $iconpath.'quill.gif" class="LC_indexer_icon" /></a>');
952: my $domain=(split(m|/|,$startdir))[2];
953: my $plainname=&Apache::loncommon::plainname($listname,$domain);
954: $r->print ($listname);
955: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
956: $r->print ('</form>'.$tabtag.'</tr>'."\n");
957: return OK;
958: }
959:
960: # display file
961: if (($fnptr == 0 and $filecom[3] ne '') or $absolute) {
962: my $title;
963: my $filelink = $pathprefix.$filecom[0];
964: if ($hash{'display_attrs_0'} == 1) {
965: $title = &Apache::lonnet::gettitle($filelink);
966: }
967: my @file_ext = split (/\./,$listname);
968: my $curfext = $file_ext[-1];
969: if (@Omit) {
970: foreach (@Omit) { return OK if (lc($curfext) eq $_); }
971: }
972: if (@Only) {
973: my $skip = 1;
974: foreach (@Only) { $skip = 0 if (lc($curfext) eq $_); }
975: return OK if ($skip > 0);
976: }
977: # Set the icon for the file
978: my $iconname = &Apache::loncommon::icon($listname);
979: $r->print('<tr valign="'.$valign.'" bgcolor="'.$fileclr.'">'.
980: '<td valign="top"><span class="LC_nobreak">');
981:
982: if ($env{'form.catalogmode'} eq 'interactive') {
983: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
984: $r->print("<a href=\"javascript:select_data(\'",
985: $quotable_filelink,"')\">");
986: $r->print("<img alt=\"\" src='",$iconpath,"select.gif' class='LC_icon' /></a>".
987: "\n");
988: $r->print('</span></td><td valign="top"><span class="LC_nobreak">');
989: } elsif ($env{'form.catalogmode'} eq 'import') {
990: $r->print("<form name='form$fnum' action=''>\n");
991: $r->print("<input type='checkbox' name='filelink"."' ".
992: "value='$filelink' onclick='".
993: "javascript:queue(\"form$fnum\")' ");
994: if ($hash{'store_'.$filelink}) {
995: $r->print("checked");
996: }
997: $r->print(" />\n");
998: $r->print('</form></span></td><td valign="top"><span class="LC_nobreak">');
999: $hash{"pre_${fnum}_link"}=$filelink;
1000: $hash{"pre_${fnum}_title"}=$title;
1001: if (!$hash{"pre_${fnum}_title"}) {
1002: $hash{"pre_${fnum}_title"} = 'Not_retrieved';
1003: }
1004: $fnum++;
1005: }
1006: # Form to open or close sequences
1007: if ($filelink=~/\.(page|sequence)$/) {
1008: my $curdir = $startdir.$filecom[0].'/';
1009: &begin_form($r,$curdir);
1010: $indent--;
1011: }
1012: # General indentation
1013: if ($indent > 0 and $indent < 16) {
1014: $r->print("<img alt=\"\" src='",$iconpath,"whitespace",$indent,
1015: ".gif' class='LC_icon' />\n");
1016: } elsif ($indent >0) {
1017: my $ten = int($indent/10.);
1018: my $rem = $indent%10.0;
1019: my $count = 0;
1020: while ($count < $ten) {
1021: $r->print("<img alt=\"\" src=".$iconpath.
1022: "whitespace10.gif class='LC_icon' />\n");
1023: $count++;
1024: }
1025: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
1026: ".gif class='LC_icon' />\n") if $rem > 0;
1027: }
1028: # Sequence open/close icon
1029: if ($filelink=~/\.(page|sequence)$/) {
1030: my $curdir = $startdir.$filecom[0].'/';
1031: my $anchor = $curdir;
1032: $anchor =~ s/\W//g;
1033: $r->print ('<input type="hidden" name="acts" value="" />');
1034: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
1035: 'folder_pointer_'.$diropen.'.gif"');
1036: $r->print (' name="'.$msg.'" alt="'.$msg.'" type="image" class="LC_indexer_icon" />'.
1037: "\n");
1038: }
1039: # Filetype icons
1040: $r->print("<img alt=\"\" src='$iconname' class='LC_icon' />\n");
1041: my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
1042:
1043: $r->print (" <a href=\"javascript:openWindow('".$quotable_filelink.
1044: "?inhibitmenu=yes','previewfile','450','500','no','yes','yes');\"".
1045: " target=\"_self\">$listname</a> ");
1046: $quotable_filelink = &Apache::loncommon::escape_single($filelink.'.meta');
1047: &Apache::loncommon::inhibit_menu_check(\$quotable_filelink);
1048: $r->print (" (<a href=\"javascript:openWindow('".$quotable_filelink.
1049: "?inhibitmenu=yes','metadatafile','500','550','no','yes','no');\" ".
1050: " target=\"_self\">".&mt('metadata')."</a>) ");
1051: # Close form to open/close sequence
1052: if ($filelink=~/\.(page|sequence)$/) {
1053: $r->print('</form>');
1054: }
1055: $r->print("</span></td>\n");
1056: if ($hash{'display_attrs_0'} == 1) {
1057: $r->print('<td> '.($title eq '' ? ' ' : $title).
1058: ' </td>'."\n");
1059: }
1060: $r->print('<td align="right"> ',
1061: $filecom[8]," </td>\n")
1062: if $hash{'display_attrs_1'} == 1;
1063: $r->print('<td> '.
1064: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1065: if $hash{'display_attrs_2'} == 1;
1066: $r->print('<td> '.
1067: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1068: if $hash{'display_attrs_3'} == 1;
1069:
1070: if ($hash{'display_attrs_4'} == 1) {
1071: my $author = &Apache::lonnet::metadata($filelink,'author');
1072: $r->print('<td> '.($author eq '' ? ' ' : $author).
1073: " </td>\n");
1074: }
1075: if ($hash{'display_attrs_5'} == 1) {
1076: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1077: # $keywords = ' ' if (!$keywords);
1078: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1079: " </td>\n");
1080: }
1081: #'
1082:
1083: if ($hash{'display_attrs_6'} == 1) {
1084: my $lang = &Apache::lonnet::metadata($filelink,'language');
1085: $lang = &Apache::loncommon::languagedescription($lang);
1086: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1087: " </td>\n");
1088: }
1089: if ($hash{'display_attrs_8'} == 1) {
1090: # statistics
1091: &dynmetaread($filelink);
1092: $r->print("<td>");
1093: for (qw(count course stdno avetries difficulty disc clear technical
1094: correct helpful depth)) {
1095:
1096: &dynmetaprint($r,$filelink,$_);
1097: }
1098: $r->print(" </td>\n");
1099:
1100: }
1101: if ($hash{'display_attrs_10'} == 1) {
1102: my $source = &Apache::lonnet::metadata($filelink,'sourceavail');
1103: if($source eq 'open') {
1104: my $sourcelink = &Apache::lonsource::make_link($filelink,$listname);
1105: my $quotable_sourcelink = &Apache::loncommon::escape_single($sourcelink);
1106: &Apache::loncommon::inhibit_menu_check(\$quotable_sourcelink);
1107: $r->print('<td>'."<a href=\"javascript:openWindow('"
1108: .$quotable_sourcelink.
1109: "', 'previewsource', '700', '700', 'no', 'yes','yes');\"".
1110: " target=\"_self\">".&mt('Source Code')."</a> "."</td>\n");
1111: } else { #A cuddled else. :P
1112: $r->print("<td> </td>\n");
1113: }
1114: }
1115: if ($hash{'display_attrs_11'} == 1) {
1116: # links
1117: &dynmetaread($filelink);
1118: $r->print('<td>');
1119: &coursecontext($r,$filelink);
1120: for (qw(goto_list comefrom_list sequsage_list dependencies course_list)) {
1121: &dynmetaprint($r,$filelink,$_);
1122: }
1123: $r->print('</td>');
1124: }
1125: if ($hash{'display_attrs_7'} == 1) {
1126: # Show resource
1127: my $output=&showpreview($filelink);
1128: $r->print('<td> '.($output eq '' ? ' ':$output).
1129: " </td>\n");
1130: }
1131: if ($hash{'display_attrs_12'} == 1) {
1132: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1133: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1134: " </td>\n");
1135: }
1136:
1137: if ($hash{'display_attrs_13'} == 1) {
1138: my $notes = &Apache::lonnet::metadata($filelink,'notes');
1139: $r->print('<td> '.($notes eq '' ? ' ' : $notes).
1140: " </td>\n");
1141: }
1142:
1143: if ($hash{'display_attrs_14'} == 1) {
1144: my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
1145: $r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
1146: " </td>\n");
1147: }
1148:
1149: if ($hash{'display_attrs_15'} == 1) {
1150: my $gradelevel = &Apache::lonnet::metadata($filelink,'gradelevel');
1151: $r->print('<td> '.($gradelevel eq '' ? ' ' : $gradelevel).
1152: " </td>\n");
1153: }
1154:
1155: if ($hash{'display_attrs_16'} == 1) {
1156: my $standards = &Apache::lonnet::metadata($filelink,'standards');
1157: $r->print('<td> '.($standards eq '' ? ' ' : $standards).
1158: " </td>\n");
1159: }
1160:
1161: $r->print("</tr>\n");
1162: }
1163:
1164: # -- display directory
1165: if ($fnptr == $dirptr) {
1166: my $curdir = $startdir.$filecom[0].'/';
1167: my $anchor = $curdir;
1168: $anchor =~ s/\W//g;
1169: $r->print("<tr bgcolor=\"$fileclr\">$extrafield<td valign=$valign>");
1170: &begin_form ($r,$curdir);
1171: my $indentm1 = $indent-1;
1172: if ($indentm1 < 16 and $indentm1 > 0) {
1173: $r->print("<img alt=\"\" src=",$iconpath,"whitespace",$indentm1,
1174: ".gif class='LC_icon' />\n");
1175: } else {
1176: my $ten = int($indentm1/10.);
1177: my $rem = $indentm1%10.0;
1178: my $count = 0;
1179: while ($count < $ten) {
1180: $r->print ("<img alt=\"\" src=",$iconpath
1181: ,"whitespace10.gif class='LC_icon' />\n");
1182: $count++;
1183: }
1184: $r->print ("<img alt=\"\" src=",$iconpath,"whitespace",$rem,
1185: ".gif class='LC_icon' />\n") if $rem > 0;
1186: }
1187: $r->print ('<input type="hidden" name="acts" value="" />');
1188: $r->print ('<a name="'.$anchor.'"></a><input src="'.$iconpath.
1189: 'folder_pointer_'.$diropen.'.gif"');
1190: $r->print (' name="'.$msg.'" alt="'.$msg.'" type="image" class="LC_indexer_icon" />'.
1191: "\n");
1192: my $quotable_curdir = &Apache::loncommon::escape_single($curdir);
1193: $r->print ('<a href="javascript:gothere(\''
1194: .$quotable_curdir.'\')">'
1195: .'<img alt="'.&mt('Open Folder').'"src="'.
1196: $iconpath.'folder_'.$diropen.'.gif" class="LC_icon" /></a>'.
1197: "\n");
1198: $r->print ("$listname</form></td>\n");
1199: # Attributes
1200: my $filelink = $startdir.$filecom[0].'/default';
1201:
1202: if ($hash{'display_attrs_0'} == 1) {
1203: my $title = &Apache::lonnet::gettitle($filelink);
1204: $r->print('<td> '.($title eq '' ? ' ' : $title).
1205: ' </td>'."\n");
1206: }
1207: $r->print('<td align=right> ',
1208: $filecom[8]," </td>\n")
1209: if $hash{'display_attrs_1'} == 1;
1210: $r->print('<td> '.
1211: (&Apache::lonlocal::locallocaltime($filecom[9]))." </td>\n")
1212: if $hash{'display_attrs_2'} == 1;
1213: $r->print('<td> '.
1214: (&Apache::lonlocal::locallocaltime($filecom[10]))." </td>\n")
1215: if $hash{'display_attrs_3'} == 1;
1216:
1217: if ($hash{'display_attrs_4'} == 1) {
1218: my $author = &Apache::lonnet::metadata($filelink,'author');
1219: $r->print('<td> '.($author eq '' ? ' ' : $author).
1220: " </td>\n");
1221: }
1222: if ($hash{'display_attrs_5'} == 1) {
1223: my $keywords = &Apache::lonnet::metadata($filelink,'keywords');
1224: # $keywords = ' ' if (!$keywords);
1225: $r->print('<td> '.($keywords eq '' ? ' ' : $keywords).
1226: " </td>\n");
1227: }
1228: if ($hash{'display_attrs_6'} == 1) {
1229: my $lang = &Apache::lonnet::metadata($filelink,'language');
1230: $lang = &Apache::loncommon::languagedescription($lang);
1231: $r->print('<td> '.($lang eq '' ? ' ' : $lang).
1232: " </td>\n");
1233: }
1234: if ($hash{'display_attrs_8'} == 1) {
1235: $r->print('<td> </td>');
1236: }
1237: if ($hash{'display_attrs_10'} == 1) {
1238: $r->print('<td> </td>');
1239: }
1240: if ($hash{'display_attrs_7'} == 1) {
1241: $r->print('<td> </td>');
1242: }
1243: if ($hash{'display_attrs_12'} == 1) {
1244: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1245: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1246: " </td>\n");
1247: }
1248: if ($hash{'display_attrs_11'} == 1) {
1249: $r->print('<td> </td>');
1250: }
1251: if ($hash{'display_attrs_12'} == 1) {
1252: my $subject = &Apache::lonnet::metadata($filelink,'subject');
1253: $r->print('<td> '.($subject eq '' ? ' ' : $subject).
1254: " </td>\n");
1255: }
1256: if ($hash{'display_attrs_13'} == 1) {
1257: my $notes = &Apache::lonnet::metadata($filelink,'notes');
1258: $r->print('<td> '.($notes eq '' ? ' ' : $notes).
1259: " </td>\n");
1260: }
1261: if ($hash{'display_attrs_14'} == 1) {
1262: my $abstract = &Apache::lonnet::metadata($filelink,'abstract');
1263: $r->print('<td> '.($abstract eq '' ? ' ' : $abstract).
1264: " </td>\n");
1265: }
1266: if ($hash{'display_attrs_15'} == 1) {
1267: my $gradelevel = &Apache::lonnet::metadata($filelink,'gradelevel');
1268: $r->print('<td> '.($gradelevel eq '' ? ' ' : $gradelevel).
1269: " </td>\n");
1270: }
1271: if ($hash{'display_attrs_16'} == 1) {
1272: my $standards = &Apache::lonnet::metadata($filelink,'standards');
1273: $r->print('<td> '.($standards eq '' ? ' ' : $standards).
1274: " </td>\n");
1275: }
1276: $r->print('</tr>');
1277: }
1278:
1279: }
1280:
1281: sub coursecontext {
1282: my ($r,$filelink)=@_;
1283: my $filesymb=&Apache::lonnet::symbread($filelink);
1284: if ($filesymb) {
1285: my ($map,$index,$resource)=&Apache::lonnet::decode_symb($filesymb);
1286: $r->print(&mt('Already in this course:<br />[_1] in folder/map [_2].<br />',
1287: &Apache::lonnet::gettitle($resource),
1288: &Apache::lonnet::gettitle($map)));
1289: }
1290: }
1291:
1292: sub showpreview {
1293: my ($filelink)=@_;
1294: if ($filelink=~m-^(/ext/|http://)-) {
1295: return &mt('External Resource, preview not enabled');
1296: }
1297: my ($curfext)=($filelink=~/\.(\w+)$/);
1298: my $output='';
1299: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
1300: if ($embstyle eq 'ssi') {
1301: my $cache=$Apache::lonnet::perlvar{'lonDocRoot'}.$filelink.
1302: '.tmp';
1303: if ((!$env{'form.updatedisplay'}) &&
1304: (-e $cache)) {
1305: open(FH,$cache);
1306: $output=join("\n",<FH>);
1307: close(FH);
1308: } else {
1309: # In update display mode, remove old cache. This is done to retroactively
1310: # clean up course context renderings.
1311: if (-e $cache) {
1312: unlink($cache);
1313: }
1314: $output=&Apache::lonnet::ssi_body($filelink);
1315: # Is access denied? Don't render, don't store
1316: if ($output=~/LONCAPAACCESSCONTROLERRORSCREEN/s) {
1317: $output='';
1318: # Was this rendered in course content? Don't store
1319: } elsif (!&Apache::lonnet::symbread($filelink)) {
1320: open(FH,">$cache");
1321: print FH $output;
1322: close(FH);
1323: }
1324: }
1325: $output='<font size="-2">'.$output.'</font>';
1326: } elsif ($embstyle eq 'img') {
1327: $output='<img alt="'.&mt('Preview').'" src="'.$filelink.'" />';
1328: } elsif ($filelink=~m{^/res/($match_domain)/($match_username)/}) {
1329: $output='<img alt="'.&mt('Preview').'" src="http://'.
1330: &Apache::lonnet::hostname(&Apache::lonnet::homeserver($2,$1)).
1331: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1332: }
1333: return $output;
1334: }
1335:
1336: sub dynmetaprint {
1337: my ($r,$filelink,$item)=@_;
1338: if ($dynhash{$filelink}->{$item}) {
1339: $r->print("\n<br />".$fieldnames{$item}.': '.
1340: &Apache::lonmeta::prettyprint($item,
1341: $dynhash{$filelink}->{$item},
1342: (($env{'form.catalogmode'} ne 'import')?'preview':''),
1343: '',
1344: (($env{'form.catalogmode'} eq 'import')?'document.forms.fileattr':''),1));
1345: }
1346: }
1347:
1348: # ------------------- prints the beginning of a form for directory or file link
1349: sub begin_form {
1350: my ($r,$uri) = @_;
1351: my $anchor = $uri;
1352: $anchor =~ s/\W//g;
1353: $uri=&Apache::loncommon::escape_single($uri);
1354: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
1355: '#'.$anchor.
1356: '" onsubmit="return rep_dirpath(\''.$dnum.'\''.
1357: ',document.forms.fileattr.acts.value)" '.
1358: 'enctype="application/x-www-form-urlencoded">'."\n");
1359: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'" />'.
1360: "\n");
1361: $r->print ('<input type="hidden" name="dirPointer" value="on" />'."\n");
1362: $r->print(&Apache::loncommon::inhibit_menu_check('input'));
1363: $dnum++;
1364: }
1365:
1366: # --------- settings whenever the user causes the indexer window to be launched
1367: sub start_fresh_session {
1368: my ($hash) = @_;
1369: delete $hash->{'form.catalogmode'};
1370: delete $hash->{'form.mode'};
1371: delete $hash->{'form.form'};
1372: delete $hash->{'form.element'};
1373: delete $hash->{'form.omit'};
1374: delete $hash->{'form.only'};
1375: foreach (keys %{$hash}) {
1376: delete $hash->{$_} if (/^(pre_|store)/);
1377: }
1378: }
1379:
1380: # ------------------------------------------------------------------- setvalues
1381: sub setvalues {
1382: # setvalues is used in registerurl to synchronize the database
1383: # hash and environment hashes
1384: my ($H1,$h1key,$H2,$h2key) =@_;
1385: #
1386: if (exists $H2->{$h2key}) {
1387: $H1->{$h1key} = $H2->{$h2key};
1388: } elsif (exists $H1->{$h1key}) {
1389: $H2->{$h2key} = $H1->{$h1key};
1390: }
1391: }
1392:
1393: 1;
1394:
1395: sub cleanup {
1396: if (tied(%hash)){
1397: &Apache::lonnet::logthis('Cleanup indexer: hash');
1398: }
1399: return OK;
1400: }
1401:
1402:
1403:
1404:
1405:
1406: =head1 NAME
1407:
1408: Apache::lonindexer - mod_perl module for cross server filesystem browsing
1409:
1410: =head1 SYNOPSIS
1411:
1412: Invoked by /etc/httpd/conf/srm.conf:
1413:
1414: <LocationMatch "^/res.*/$">
1415: SetHandler perl-script
1416: PerlHandler Apache::lonindexer
1417: </LocationMatch>
1418:
1419: =head1 INTRODUCTION
1420:
1421: This module enables a scheme of browsing across a cross server.
1422:
1423: This is part of the LearningOnline Network with CAPA project
1424: described at http://www.lon-capa.org.
1425:
1426: =head1 BEGIN SUBROUTINE
1427:
1428: This routine is only run once after compilation.
1429:
1430: =over 4
1431:
1432: =item *
1433:
1434: Initializes %language hash table.
1435:
1436: =back
1437:
1438: =head1 HANDLER SUBROUTINE
1439:
1440: This routine is called by Apache and mod_perl.
1441:
1442: =over 4
1443:
1444: =item *
1445:
1446: read in machine configuration variables
1447:
1448: =item *
1449:
1450: see if called from an interactive mode
1451:
1452: =item *
1453:
1454: refresh environment with user database values (in %hash)
1455:
1456: =item *
1457:
1458: define extra fields and buttons in case of special mode
1459:
1460: =item *
1461:
1462: set catalogmodefunctions to have extra needed javascript functionality
1463:
1464: =item *
1465:
1466: print header
1467:
1468: =item *
1469:
1470: evaluate actions from previous page (both cumulatively and chronologically)
1471:
1472: =item *
1473:
1474: output title
1475:
1476: =item *
1477:
1478: get state of file attributes to be showing
1479:
1480: =item *
1481:
1482: output state of file attributes to be showing
1483:
1484: =item *
1485:
1486: output starting row to the indexed file/directory hierarchy
1487:
1488: =item *
1489:
1490: read in what directories have previously been set to "open"
1491:
1492: =item *
1493:
1494: if not at top level, provide an uplink arrow
1495:
1496: =item *
1497:
1498: recursively go through all the directories and output as appropriate
1499:
1500: =item *
1501:
1502: information useful for group import
1503:
1504: =item *
1505:
1506: end the tables
1507:
1508: =item *
1509:
1510: end the output and return
1511:
1512: =back
1513:
1514: =head1 OTHER SUBROUTINES
1515:
1516: =over 4
1517:
1518: =item *
1519:
1520: scanDir - recursive scan of a directory
1521:
1522: =item *
1523:
1524: get_list - get complete matched list based on the uri (returns an array)
1525:
1526: =item *
1527:
1528: match_ext - filters out files based on extensions (returns an array)
1529:
1530: =item *
1531:
1532: display_line - displays one line in appropriate table format
1533:
1534: =item *
1535:
1536: begin_form - prints the beginning of a form for directory or file link
1537:
1538: =item *
1539:
1540: start_fresh_session - settings whenever the user causes the indexer window
1541: to be launched
1542:
1543: =back
1544:
1545: =cut
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